01PostMy workWhat you actually pay for rental SaaSA host with five units can quietly spend 300–800 PLN a month on tools. Free alternatives cover more of that bill than people expect.8 Sept 2026costssaasopen-sourcenotes
02ResourceMy workOpen-source licenses, plain languageMIT, Apache, GPL, AGPL — what you’re actually allowed to do. A host-friendly cheat sheet without a lawyer.8 Sept 2026licensesopen-sourcereference
03GitHubFoundby Langflow AILangflowVisual builder for LLM flows in Python. Drag nodes, ship a prototype agent without starting from a blank repo.5 Sept 2026aillmopen-sourcepython